one of the most central things i think to come out of the debate was debate over mitt romney's proposal for tax policy, which is a 20% rate cut across the board, but he also says there's these other conditions, right, that it will be revenue neutral and that he's not going to lower taxes on people in the high income. and the question is can you get all three of those principles to work together? joe, you were talking about the broad principles you want out of a tax system, raising revenue, right? we want to raise enough revenue to fund the government, which i don't think we're doing. we have taxes that are a percentage of gdp at a 50 or 60 year low. you want fairness. and you want to promote growth. you were speaking about warren buffet before i cut you off to go to break. >> warren buffet has edicts that are wrong for somebody like him to pay a lower tax rate than a secretary. you tax -- i would feel a lot more comfortable if romney came out and said i agree with that principle. the buffet principle is correct. it's not just a question of fairness, it's a question of efficiency and gro